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. A. H. NEWTON. FUEL MIXING DEVICE FOR INTERNAL COMBUSTION ENGINES.APPLICATION FILED MAR. I. I9I6.

1,1 95,254. Patented Aug. 22,1916.

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' To all whom it may concern:

Be it known that I, ARTHUR H. NEWTON,

, vices. for internal combustion engines, parmrrnn sr a'r s PaaEE roEicE.

AETHI'IR' NEWTON, OF NEW YORK, N. Y.-

FUEL-MIXING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

'a citizen of the United States, residing at 173 l VestEighty-th'irdstreet, New York,-

in the county of New York and State of New York, have invented certainnew and useful Improvements in Fuel-Mixing Devices forInternal-Combustion Engines, of

which the following is a specification.

Thisinvention relates to fuel-mixing deticularly -of.'the type designedfor insertion within the intake-pipe of the engine, and

having an annular flange or collar held between thefnieeting-fla-nges ofthe c'arbureter and manifold. a

Attempts have been heretofore made to devise a mixer. of this typehaving blades,

. efficient; one that will be sufliciently subcomplete and thereforeuniform mixing of stationary or rotatable, for imparting a whirlingmovement to the mixture of gaso:

lene and air after it leaves the carbureter, screens of various sortsbeing sometimes employed to assist in. the mixing of the fuel. Most ofthese, however, ifnot all, have been for one reason or anotherunsuccessful, and

none of them so far as I know hasattained sufficient success to warrantadoption by any of the leading makers of automobiles, in which a deviceof this character is particularly useful. p

The object of the present invention is to produce a mixer of theaforementioned type, economical of manufacture and yet highly stantialto withstand any back-firing and therefore protect the .carbureter, andyet so constructed as to allow passage therethrough the air and gasbefore passing into the cylinders. I

The invention is illustrated in the accom- .panying drawing, wherein,-'-

Figure-l is a side elevation of a preferred form of, mixer; Fig. 2 1s avertlca lsectional view of the same, the rotatable vane and its spindle,however, bemg shown in 'elevat1on;

slightly modified in shape.

As illustrated, the mixer comprises a casting or shell 1, preferably ofbrass, having.

an annular upright portion 2, and an aperscreen "8, preferably of brass.

A Specification of Letters Patent. Patented Aug. 22, 1916. Applicationfiled Math 1 1916. Serial No. snsoe.

tured base 3 constituting the bottom of the device and convenientlyformed of crossbars 4 (see Fig. 3). The base 3 is provided with anannular flange or collar 5 by means of which the mixer may be held in'the intake passage, the flange 5 being secured be: tween themeeting-flanges of the carbureter and the manifold,not shown: Extendingvertically upward from the base or spider formed by thecross-bars ei,and integral therewith if the shell is cast, as is preferred, there is abearing 6, preferably somewhat elongated, as shown.

Over the shell 1', and secured theret along its lower edge preferablybya clamping-ring .7, there is a relatively fine-mesh The upper, outeredge of the portion 2 may be cut away to accommodate the lower edgeofthe screen and its clamping-ring. 7, as shown, the arrangement beingsuch that the outer face of'the ring 7 liessubstantially flush with theouter surface of the upright portion 2 of the shell. The screen isdome-shaped and preferably, as shown in Figs 1 and 2, substantiallyhemispherical, it halving been found that screens having such shapes arenoticeably more rigid. and stronger,- and therefore better able towithstand back-fir.-

ing strains than screens of other shapes. A

screen 8 shaped as shown in Fig. 6 may be used with good results, but isnot quite so strong as that illustrated in Figs. 1 and 2.

.A spindle Ois mounted for easy rotation in the elongated bearing (3,and is provided at its upper end, beyond the bearing, with a propeller10, the several blades of which extend outwardly to within a shortdistance of the shell 1. The lower end of the spindle may' be providedwith a nut or other head 11. f f Within the casing 1 and its screencover8, and -so formed as to lie loosely against the inner surfaces thereof,there is a Wire 0011 12, the height of which, when the parts areassembled, is substantially that of theinside of thecasing and itsscreen-top.

The use of the device will be apparent.

The shell or casing is slid upinto the intakepipe of the enginepreferably where the .carbin-eter-flange abuts the same, the flange 5 ofthepnixer being securely held between.

the neeting-flanges of the carburetor and the manifold As the .mixtureof air'and hydrocarbon passes into the shell of the mixer, it is diyidedby the spider 4: into several portions which, upon further forwardmovement impinge upon the blades of the propeller and cause the latterto rotate quite rapidly in a well-known manner, the mixture becomingWell broken up and part thereof being thrown outward against the wirecoil 12 and the casing and there further broken up and mixed. Theportion of the mixture which passes upward throughthe blades of thepropeller strikes the wire coil Q12 and immediatelyv thereafter thewirescreen 8 both of these elements assisting materially in the mixingof the ingredients of the charge.

The coil 12'not only assists in the mixing operation, as abovedescribed,=but serveslikewise, due perhaps to any movement it mayreceive from the impact of the fuel in passing thereby, to kee the innersurface of the casing clean and ree from any foreign accumulationswhatsoever. After use, it has beenobserved that both the inner wall ofthe shell and the wire coil are clean and bright. The wire coil alsoserves as a reinforcement 25. 'of the screen-top-8, assisting the latterto ,withstand any reverse shocks due to backfiring.

' With the use of a device of this construction, a very thoroughmixingof the air and gas 1s effected, in proper proportions, viz.,

three parts air to one part of gasolene', without materially impedingthe flow to the cylinders, and a great saving of gasolene is realized.Since, as is well known, back-firing is frequently due to impropermixing of the air and hydrocarbon, it will be appreciated that thedevice of the present invention I will prove of considerable advantagein the elimination of this evil. Carbon deposits in 40 the cylinders dueto use of low-grade gasolene, or faulty mixing, or accumulationof dust,dirt, etc., will also be prevented.

I I claim 1. A fuel-mixing device for internal combustion engines,comprisinga casing having an annular upright portion for lnsertlon 1nthe intake-plpe of the englne and a flanged,

apertured support forming the bottom of the device; a central bearin insaid support; a

, rotatable spindle journa led in said bearing with said casing; and awire coil Within the cap and casing and lying thereagainst.

3. A fuel-mixing device for internal combustion engines, comprising acasting havingan annular upright portion for insertion in theintake-pipe'of the engine, a flanged,;

apertured support formingv the bottom of the device and a centralbearing in said sup-'. ,port; a rotatable'spindle journaled inj'saidbearing blades on said spindle; a substantially hemispherical screen.cap, having a. flush connection along its equatorial line withsaidcasting; and a wire coil within the cap and casting and lyingthereagainst.

Intestimony whereof I aflix my signature in presence of two witnesses. v

- ARTHUR H. NEWTON. Witnesses:

JAMES J. SmLEY, F. B. HAUBERT,

